1.

To increase the resonant frequency in series LCR circuit, (A) Source frequency should be increased(B) Another resistance should be added in series with the first resistance.(C) Another capacitor should be added in series with the first capacitor(D) The source frequency should be decreased

Answer»

Correct option is (C) Another capacitor should be added in series with the first capacitor

\(f = \frac1{2\pi\sqrt{LC}}\)

To increase the resonating frequency product of L and C should decrease. 

By joining capacitor in series, capacitor will decrease



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